Oil Pan Replacement

REMOVAL PROCEDURE
1. Raise and support the vehicle.
2. Remove four bolts and the front skid plate from the vehicle (if equipped).
3. Remove the front differential assembly from the chassis (four wheel drive vehicles).
4. Remove the crankshaft position sensor bolt.
5. Remove the crankshaft position sensor.
6. Place a drain pan beneath the engine oil pan to catch escaping oil.





7. Remove the engine oil drain plug (2) and gasket allowing the engine oil to drain.





8. Remove the transmission left side stiffener bracket (2).
9. Remove the two bolts (four speed automatic transmission models).
10. Remove the clutch housing lower plate (1) for manual transmission equipped vehicles.
11. Remove the torque converter housing lower plate for automatic transmission equipped vehicles.





12. Remove the following from the cylinder block (1):
^ Sixteen bolts
^ Two nuts
^ The engine oil pan

13. Remove the two bolts and the oil pump strainer (3) from the cylinder block (1).
14. Clean the inside of the engine oil pan (2) and oil pump strainer screen.
15. Clean the mating surfaces of the engine oil pan (2) and the cylinder block (1).

INSTALLATION PROCEDURE





1. Apply the silicone sealant GM P/N 12346240, or the equivalent, to the engine oil pan mating surface in a continuous bead (1).

NOTICE: Refer to Fastener Notice in Service Precautions.





2. Install the oil pump strainer (3) to the cylinder block. Secure the oil pump strainer (3) with two bolts.
^ Tighten the oil pump strainer bolts to 11 Nm (97 inch lbs.).

3. Install the engine oil pan (2) to the cylinder block. Secure the engine oil pan (2) with sixteen bolts and two nuts.
^ Tighten the engine oil pan nuts and bolts to 11 Nm (97 inch lbs.).

4. Install the clutch housing lower plate for the manual transmission equipped vehicles.
5. Install the torque converter housing lower plate for the automatic transmission vehicles.
6. Install the left side stiffener bracket for the four speed transmission models. Secure the left side stiffener bracket with two bolts.
7. Install the engine oil drain plug and gasket.
^ Tighten the engine oil drain plug to 35 Nm (26 ft. lbs.).

8. Install the crankshaft position sensor.
9. Install the front differential assembly to the chassis in four wheel drive vehicles.
10. Install the front skid plate (if equipped). Secure the front skid plate with the four bolts.
^ Tighten the front skid plate and bolts to 55 Nm (40 ft. lbs.).

11. Lower the vehicle.
12. Refill the engine oil according to the specifications.
13. Check the oil pressure upon completion of the installation.